ANAHEIM, Calif. -- CSK Auto, Inc., the parent company of Checker Auto Parts, Schuck's Auto Supply, and Kragen Auto
Parts, has agreed to extend its sponsorship agreement with Worsham Racing, featuring the NHRA
Nitro Funny Cars driven by Del Worsham and Phil Burkart. Terms of the new multi-year agreement
were not released.

CSK Auto has been Worsham Racing's primary sponsor since 1997, and 2004 will mark the fifth
consecutive season in which Worsham Racing will field two NHRA Nitro Funny Cars flying the
colors of Checker, Schuck's, and Kragen Auto Parts. In addition to its affiliation with Worsham
Racing, CSK Auto is also the Official Auto Parts Retailer of NHRA.

Del Worsham

Owner/driver Del Worsham welcomed the new contract extension, and views it as a validation of
not only the team's competitive accomplishments, but also of the marketing value of NHRA
POWERade drag racing.

"We're very proud of what we've done over the course of this partnership with CSK Auto,
especially in the last three years when our program has really risen to the highest levels,"
Worsham said. "The people at CSK Auto have supported us in so many ways, well beyond the pure
sponsorship part of the program, and we feel we've delivered for them and will continue to do
so.

"But, beyond the fact that we're the fortunate team that gets to work with such a proactive
sponsor, it's very rewarding to see how much value they place on being involved with NHRA
POWERade Drag Racing," Worsham continued. "Our sport is growing, developing, and really evolving
right in front of our eyes, but one thing that has never changed is the loyalty and awareness of
our millions of fans. They make it work, and Checker, Schuck's, Kragen recognizes that."

Jim Schoenberger, Vice President - Marketing for CSK Auto, was quick to point to the value of
the program from the company's perspective, as well as the appreciation CSK Auto has for the
team they will partner with for an eighth straight season in 2004.

"Compared to the length of our affiliation with Worsham Racing, I'm relatively new to the
program, but its value was clear to me in very short order," said Schoenberger, who returned to
CSK Auto in his new position in
October of 2003. "My mission is to optimize the value of our company's marketing programs,
especially in terms of creating and maintaining an effective message to our customers. Our
NHRA/Worsham program has been a terrific method for building customer and employee loyalty, and
we plan to take that even further in the future.

"There's also no doubt that we have been very fortunate to work with this particular team over
the past seven years," Schoenberger continued. "Del and Chuck Worsham, Phil Burkart, and every
member of the organization have been great to work with, and are very dedicated to making this
partnership work for everyone. What they've accomplished on the track, and what they've done for
our business, is remarkable."

As the program enters its eighth season, changes and enhancements are planned in an effort to
move the partnership toward the ultimate goal, the NHRA POWERade Championship.

"We share a vision with the Worshams, and that vision is not just tied to elapsed times and race
wins," Schoenberger said. "To field a true championship caliber team, we have to have a
commitment to excellence in all phases of the operation, from both the team's perspective and
the sponsor's.

Phil Burkart

"We're working right now on new concepts and new designs for our look and image, better
facilities for entertaining our key clients and vendor partners in the pit area, and public
service programs that will utilize Del Worsham in a very proactive fashion. On top of all that,
CSK Auto will continue to increase its support for the racing operation, giving the Worshams and
the red and blue Checker, Schuck's, Kragen teams the resources they need to compete for the
Championship. We're very excited to be moving forward."

Del Worsham, a 14-time winner in his professional career, has won 11 races in the past three
seasons, while finishing fourth or higher in POWERade points over the same period of time.
Worsham has his eyes fixed firmly on the big prize.

"Our goal is to win the POWERade Championship," he said. "CSK has been with us since 1997, and
we've grown this program every year by sharing a long term vision. It's absolutely wonderful to
have a sponsor that's on the same page with the team, and is a true partner. We all have the
same goals, and the key aims are to continue to drive business for Checker, Schuck's, and Kragen
while we take aim at a POWERade Championship. The bottom line is, those two objectives go hand
in hand."